58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/* Copyright (C) 2019 Hangzhou C-SKY Microsystems co.,ltd. */
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#include <elfutils/libdwfl.h>
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#include "../../util/unwind-libdw.h"
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#include "../../util/perf_regs.h"
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#include "../../util/sample.h"
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bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg)
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{
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struct unwind_info *ui = arg;
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struct regs_dump *user_regs = &ui->sample->user_regs;
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Dwarf_Word dwarf_regs[32];
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#define REG(r) ({ \
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Dwarf_Word val = 0; \
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perf_reg_value(&val, user_regs, PERF_REG_RISCV_##r); \
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val; \
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})
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dwarf_regs[0] = 0;
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dwarf_regs[1] = REG(RA);
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dwarf_regs[2] = REG(SP);
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dwarf_regs[3] = REG(GP);
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dwarf_regs[4] = REG(TP);
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dwarf_regs[5] = REG(T0);
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dwarf_regs[6] = REG(T1);
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dwarf_regs[7] = REG(T2);
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dwarf_regs[8] = REG(S0);
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dwarf_regs[9] = REG(S1);
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dwarf_regs[10] = REG(A0);
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dwarf_regs[11] = REG(A1);
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dwarf_regs[12] = REG(A2);
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dwarf_regs[13] = REG(A3);
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dwarf_regs[14] = REG(A4);
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dwarf_regs[15] = REG(A5);
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dwarf_regs[16] = REG(A6);
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dwarf_regs[17] = REG(A7);
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dwarf_regs[18] = REG(S2);
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dwarf_regs[19] = REG(S3);
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dwarf_regs[20] = REG(S4);
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dwarf_regs[21] = REG(S5);
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dwarf_regs[22] = REG(S6);
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dwarf_regs[23] = REG(S7);
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dwarf_regs[24] = REG(S8);
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dwarf_regs[25] = REG(S9);
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dwarf_regs[26] = REG(S10);
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dwarf_regs[27] = REG(S11);
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dwarf_regs[28] = REG(T3);
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dwarf_regs[29] = REG(T4);
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dwarf_regs[30] = REG(T5);
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dwarf_regs[31] = REG(T6);
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dwfl_thread_state_register_pc(thread, REG(PC));
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return dwfl_thread_state_registers(thread, 0, PERF_REG_RISCV_MAX,
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dwarf_regs);
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}
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